Table 2

 Adverse events on flights between 2001 and 2003, and before 2001

Adverse effectsBetween 2001 and 2003 (190 flights)Before 2001 (264 flights)Total (454 flights)
Values are n (%).
Pneumothorax5 (3)5 (2)10 (2.2)
Anxiety57 (30)43 (16)100 (22)
Shortness of breath33 (17)32 (12)65 (14)
Chest pain29 (15)25 (9)54 (12)
Drop in O2 saturations27 (14)11 (4)38 (8.4)
Fatigue/lethargy23 (12)28 (11)51 (11)
Nausea/dizziness14 (7)22 (8)36 (7.9)
Headache11 (6)28 (11)39 (8.6)
Blue hands/nails4 (2)3 (1)7 (1.5)
No adverse effects135 (68)176 (67)311 (68.5)